fix URL to simpleSAML
fix URL to simpleSAML

The old URL didn't exist any longer
jh23453/privacyidea,jalr/privacyidea,wheldom01/privacyidea,privacyidea/privacyidea,jalr/privacyidea,jalr/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,privacyidea/privacyidea,jalr/privacyidea,privacyidea/privacyidea,jh23453/privacyidea,jalr/privacyidea,jh23453/privacyidea,wheldom01/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,jalr/privacyidea,jh23453/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea